Improvement in stove-pipe joints



A. 0- SWEETLAND.

. Stove-Pipe Joints.

NO.139,932. Patentedlunel7fl873 WITNESSES. INVENTOR.

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ALBERT G. SWEETLAND, OF NORTH ATTLEBOROUGH, MASSACHUSETTS.

IMPROVEMENT IN STOVE-PIPE JOINTS.

Specification forming part of Letters Patent No. 139,932, dated June 17,1873; application filed October 21, 1871.

To all whom it may concern:

Be it known that I,'ALBERT 0. SWEET- LAND, of North Attleborough, in thecounty of Bristol and State of Massachusetts, have invented a new andImproved Slip-Joint Oonnection for Stove-Pipe; and I do hereby declarethat the following specification, taken in connection with the drawings,is a full,

clear, and exact description thereof.

Figure 1 represents, in perspective, two joints of a stove-pipe unitedby my improved connection. Fig. 2 represents the same joints and theconnection separately.

Stove-pipes are generally composed of several sections or short lengthsof pipe, which are connected by slipping the ends of the sections intoeach other for the distance of two or three inches. As such sections aremade cylindrical throughout their length, it becomes necessary to spreadone of the ends of each section of pipe by hammering it in order toincrease its diameter sufficiently to admit the end of the section whichis to be slipped into it, and this often cracks the pipe, or otherwiseinjures or bruises it. With this method of connecting sections it is noteasy to separate them when the pipe is taken down for the summer, or toput them together again in the autumn, without badly bruising them.

My invention consists in the use of a slipjoint connection speciallycontrived to hold two sections of pipe together, and by the use of whichthe sections of pipe can be taken apart or put together with greatfacility.

In the drawings, AA represent two sections of a stove-pipe. B is theslip-joint connection for uniting the same. It consists of two sectionsof a hollow cone united at their bases, and it will be found mostconvenient, as well as ornamental, to enlarge the line of junction by ahalf-round fillet, a. This will enable the ends of each of the twosections to abut against the sides of the fillet and render it lessnecessary that the conical collars b I) should make a close fit in thesections. joint of sheet-iron cut with several slits c in each collar,so as to enable the collars to exert a spring pressure against theinterior surfaces of the sections of pipe into which they enter.

I am aware that slip-joints for connecting sections of stove-pipe havebeen used before, but I do not know of any such made in the form of twohollow cones united at their base like mine, or having the slits whichgive the spring to the metal for the purpose I have described.

I therefore claim as my invention- The slip-joint connection B,consisting of the conical collars b I), cut with slits c, and

united at their bases so as to form a fillet a, 4

substantially as and for the purpose specified.

ALBERT (J. SWEETLAND.

Witnesses:

PETER F. HUGHES, A. J. OUsHiNG.

I make the slip-

